Tool for fixing iron railings.



Nu. 7I7,26l. Patented Dec. 30, |902.

F. G. OLDENBURG.

TOUL FOR FIXING IRON HAILINGS.

(Application led June 20, 19.02.)

( No Model.) 2 Sheets-Sheet l.

ml' un Patented Dec. 30, |902.

F.- G. OLDENBURG. TOUL FOB FIXING IRON RAILINGS.

(Application led June 20, 1902.)

2 Sheets-Shout 2.

(No Model.)`

` Ttnessear.` u Y UNITED STATES aTnNT trice.

FRANZ GEORG OLDENBURG, OF ALTONA, NEAR HAMBURG, GERMANY.

TOOL FOR FIXING lRON RAILINGS.

SPECIFCATON forming part of Letters Patent No. 717,261, dated December 30, 1902.

Application led .Tune 20,1902.

To all whom t Wray concern:

Be it known that I, FRANZ GEORG OLDEN- BURG, manufacturer, of l2 Eimsbiittelerstrasse, Altona, near Hamburg, in the Empire of Germany, have invented certain new and useful Improvements in Portable Hand-Tools for Oalking Metal Fence-Railings and the Like, (for which patent applications were iiled in Germany, France, Austria, Hungary,

Denmark, Sweden, Norway, Great Britain,

Luxemburg, and Belgium May 2l, 1902,) of which the following is a specification.

Various devices have been proposed for calking the uprights or pickets of metal fences in the horizontal rails otherwise than by the old hammer-and-chisel method which involved the attendance of two workmen; but so far as I am aware all of them were of unnecessarily complexconstruction.

The object of my invention is to provide a portable hand-tool for such purposes of extremely simple and durable construction, avoiding all unnecessary parts, and reducing wear and lost motion to a minimum.

The invention is illustrated in the accompanying drawings, in which y Figure l is a side elevation of the tool. Fig. 2 is a corresponding plan View. Fig. 3 is a top plan view of the lower jaw, showing the calking-cheeks. Fig. 4 is across-section on the line A B of Fig. 3. Figs. 5 and 6 are respectively a plan view and an elevation of the insertion-piece or liner for the`upper jaw of the tool. Fig. 7 is a cross-section on the 'line C D of Fig. l, and Fig. 8 is aperspective view of the tool in use.

The tool consists of an upper arm et and a lower arm l), which are connected by the intermediate pivot-pin o. The parts a and b in front of the pivot form the jaw of the tool and are rigid with the corresponding arms. The upper jaw a' is forked, so as to permit of its embracing the rail d. The lower jaw b is also forked. The jaws are passedV over the flat iron bar e until the vfork of the jaw a lies against the rail. In the lower jaw b of the tool are arranged normally iixed laterally-adj ustable calking-cheeksf and f ',which seize the iron of lthe flat bar e upon both sides of the rail.

By means of a lever g, which is mounted upon a squared end of a shaft provided with Serial No. 112,437. (No model a cam or eccentric t' and arranged in the rear end of arm a of the tool in such a manner as to be capable of displacement in the direction indicated by the, arrow in Figs. l and 8, the cam portion t', may be pressed against the .pressure-rollj, mounted in the other arm b `trally whatever may be the diameter of the rail employed,'provision may be made for adjusting these cheeks by means of set-screws 7c 7c', as shown in Fig. 4, working in elongated slots through the forks of the lower jaw.

Interchangeable insertion-pieces Z of different openings may also be used for the upper jaw a forsuiting diiferent rails, and inally in order to suit various thicknesses of flat iron bar the width of the opening between ci and b'- lnay be adjusted by moving the pressure-roll j more or less up against the cam portion-t by means of set-screw m.

The pressure exerted by the cheeks ff remains constant and is dependent upon the eccentricity of the cam t'. Vhen the holes in the flat iron bar are exactly proportioned to the rails to be employed, obviously it is only necessary to produce a small indentation in order to furthe rail inplace.

The arms a and b are constantly held togetherby means of a spring n, so that the tool is normally open.

The spindle o of the pressure-roll jl is prolonged, so as to constitute a handle, (see Fig. 8,) so as to facilitate the manipulation-of the tool. y

My improved tool is not only applicablefor Viiking bars or rails of circular cross-section,

IOO

a b' rigid with the corresponding arms, normally fixed calking-cheeks ff secured in the forks of jaw b', means for adjusting said cheeks laterally in said forks to center them with reference to the pickets or uprghts of the railing, and fixing them in their adjusted position, and means connected to the arms o. b for forcing said jaws together.

2. 'lhe combination to form a portable hand-tool for calking metal railings, of two arms a, b pivot-ed together at c, forked jaws a b rigid with the corresponding arms, normally fixed calking-cheeks ff secured in the forks of jaw b', a cam or eccentric 'L' mounted in the farther end of arm ct, means for operating said eccentric, a pressure-roll j adjustably mounted in the farther end of arm b, opposite said eccentric, and a set-screw fm for adjusting said roll toward and from the eccentric.

3. The combination to form a portable hand-tool for calking metal railings, of two lever-arms a b pivoted together at the point c, forked jaws d b rigid with the corresponding arms, normally fixed calking-cheeksf, f' secured in the forks of jaw b', a cam or eccentric i mounted in the farther end of arm a', means for operating said eccentric, a pressure-roll j adj ustably mounted in the farther end of arm b opposite said eccentric, a setscrew fm, for adjusting said roll toward and from the eccentric and a spring n normally holding said arms together.

In testimony whereof I affix my signature in presence of two witnesses.

FRANZ GEORG OLDENBURG.

Witnesses:

E. H. L. MUMMENHOFF, O'rro W. HILLMRICH. 

